Hot-air stove



(No Model.) i

R. S. GHALMERS.

HOT AIR sToVE. No. 372,359. Patented Nov. 1, 1887.

UNiTnn rares ArnNr trice@ ROBERT SHAV CHALMERS, OF COUNCIL BLUFFS, IOVA.

HOT-Al R STOVE.

SPECIFICATION forming part of Letters Patent No. 372,359, dated November 1, 1887.

Serial No. 194,169. (No model.)

To all whom, 'it may concern.-

- Be it known that I, ROBERT SHAW CHAL- MnRs, a subjectof the Queen of Great Britain, residing at Council Bluffs, in the county of Pottawattamie and State of Iowa,have invented certain new and useful Improvements in Hot- A irStoves; and Ido declare the following to be afull, clear,and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same,reference being had to the accompanying drawings, and to letters or figures of reference marked thereon, which forma parto'f this specification.

Figure l of the drawings is a representation of a central vertical section. Fig. 2 is a horizontal section on line x x, Fig. l.

My invention relates' to stoves, heaters, and furnaces; and it consists in the construction and novel combination of parts, as will be hereinafter fully described, and pointed out in the claim. l

Referring by letter to the accompanying drawings, A designates the base of the stove; B, the ash-pit; C, the fire-pot, and D the hotair chamber or inverted-dome section of the stove. A fire-space, E, is left behind the dome D and the body of the stove, and in this firespace E an inclined deflector, F, which partially encircles the dome D, is placed, and causes the heat to be thoroughly utilized before passing into the chimney. The ash-pit B is provided with a horizontal division-plate, X, which extends forwardly nearly across the ashpit and forms beneath it the iiue which connects with the exit-Hue a. By this con struction it will be scent that while a sufficient draft is allowed to carry off the smoke through the pipe a the hot air and particles of combustion will be prevented from entering at thc lower end of the said flue, but will be carried up through the body of the stove, and thus -utilized to heat the cold air in thefchamber D.

Should it be desirable, an ash-pan might be used, in which case it would be placed upon the division-strip X.

, G is a cold-air pipe, which connects with the base-flue I-I at its lower end and extends up outside of the fire-pot section and enters the hot-air chamber D, near the bottom of the same. Immediately above the cold-airflue G,

the upper end of which is curved inwardly and passes through thc wall of the stove-body and connects with thc dome D, near the bot-l tom ofthe latter, is a horizontal deilcctingplate, Y, which extends nearly across said dome, so that the cold air which enters the dome through the iiue G will be deflected and caused to travel nearly across the bottom of the drum D before ascending to the pipe K. The pipe a is the smoke flue and conveys the smoke to the chimney. The cold air therefore entersthe hot-air chamber near the bottom of the latter and immediately over the iire,so that the cold air becomes quickly highly heated. rIhe dome or hot-air chamber is provided with a hot-air exit, X. The products of combustion partly pass up from the fire-pot around the dome D, and are dcllected by the inclined deliector F, interposed between the drum and the wall of the stove, and caused to travel forwardly around the drum D before passing through the flue Z into the pipe a.

The heated air from the hot-air chamber may be admitted to the room in which the stove is located by means of a register; or it may be conveyed to the room above by asuitable iiue, if desired.

rlhe operation of. my improved heater is as follows: Vhen kindling a re in the hre-pot C, a damper, n, in a short pipe, Z, is opened, thus giving a direct outlet-draft to the pipe a. Vhcn the bed of fuel is in a state of incandescence, the said damper n is closed, thus causing the products of combustion after lcaving the re-pot to ascend into the chamber E and to descend into the ash-pit section B above the plate X. This plate causes all the products to pass to the front of the stove, and then allows them to pass 'back beneath said plate to the lower end of the pipe a, as indi! cated by the arrows on Fig. l. In passing forward over the plate X the products of com- IOO chamber communicating at its rear with an Z, provided with a damper, n, and forming a. ash-pit, a horizontal plate, X, in said ash-pit, communication between the chamber E and adapted to direct the products of combustion pipe a when said damper is open, all substanforwnrd and then backward, an outlet-pipe, tially as described. 15 5 a, lending from the rear part of the ash-pit, In testimony whereof Iztfx my signatnrein an :tir-heating chamber, D, directly above the presence of two witnesses.

fire-pot, provided with a deflectlng'pltttc, Y, ROBERT SHAW CHALMERS.

:L cold-air pipe, G, lending into said chamber D below the said plate Y, with its opposite Vitliesses:

1o end opening between the ash-pit and thelower J. GILBERT,

end of thc escape luea, andadirect-draft pipe, W'. CHALMERS. 

